Re: [RFC PATCH v3 17/36] pflash_cfi01/tdx: Introduce ram_mode of pflash for TDVF

[Xiaoyao Li]

On 3/24/2022 4:35 PM, Gerd Hoffmann wrote:
> On Tue, Mar 22, 2022 at 01:20:24PM +0100, Gerd Hoffmann wrote:
> >    Hi,
> >
> > > At the time I did try a gross hack that (IIRC) disabled the
> > > rom_reset logic, and munged x86_bios_rom_init so that it would
> > > force load it straight at the RAM location.
> >
> > Sounds reasonable.  The whole rom logic exists to handle resets,
> > but with confidential guests we don't need that, we can't change
> > guest state to perform a reset anyway ...
>
> Completed, cleaned up a bit, but untested:
>    https://git.kraxel.org/cgit/qemu/log/?h=sirius/cc
>
> Any chance you can give this a try?

Hi Gred,

I refactor the TDX series to load TDVF via "-bios" option upon it.

No issue hit.

Thanks,
-Xiaoyao

> thanks,
>    Gerd